sql+aspnetpager+查询功能

分页代码：

#region 通过SQL语句分页

        public DataSet GetPageDataBySql(int pageIndex, int pageSize, string tbName, string tbID, string keyName,string keyword,string orderType)
        {
            string strConn = ConfigurationManager.ConnectionStrings["DB"].ConnectionString;

            SqlConnection conn = new SqlConnection(strConn);

            try
            {
                conn.Open();

                SqlCommand cmd = conn.CreateCommand();

                string sql = "";

                cmd.CommandType = CommandType.Text;
                if (!string.IsNullOrEmpty(keyword) && !string.IsNullOrEmpty(keyName))
                {
                    sql = "select top " + pageSize + " * from [" + tbName + "] where " + tbID + " not in(select top " + (pageIndex - 1) * pageSize + " " + tbID + " from [" + tbName + "]  order by " + tbID + " "+orderType+") and " + keyName + " like '%" + keyword + "%'  order by " + tbID + " "+orderType;
                }
                else
                {
                    sql = "select top " + pageSize + " * from [" + tbName + "] where " + tbID + " not in(select top " + (pageIndex - 1) * pageSize + " " + tbID + " from [" + tbName + "]  order by " + tbID + " " + orderType + ")   order by " + tbID + " " + orderType;
                }


                cmd.CommandText = sql;

                SqlDataAdapter ada = new SqlDataAdapter(cmd);
                DataSet ds = new DataSet();
                DataTable dt = new DataTable();

                if (ada != null)
                {
                    ada.Fill(ds);
                    return ds;
                }
                return null;
            }
            finally
            {
                conn.Close();
            }

        }  
        #endregion

获取总数：

#region 根据条件查找数据的总数
        public static int GetCount(string tbName,string keyName,string keyword)
        {
            string strConn = ConfigurationManager.ConnectionStrings["DB"].ConnectionString;

            SqlConnection conn = new SqlConnection(strConn);

            try
            {
                conn.Open();

                string sql = "";

                SqlCommand cmd = conn.CreateCommand();

                if (!string.IsNullOrEmpty(keyName) && !string.IsNullOrEmpty(keyword))
                {
                    sql = "select * from " + tbName+ "  where  "+keyName+" like '%"+keyword+"%'";
                }
                else
                {
                    sql = "select * from " + tbName;
                }

                cmd.CommandText = sql;
                SqlDataAdapter ada = new SqlDataAdapter(cmd);
                DataSet ds = new DataSet();
                DataTable dt = new DataTable();
                int Count = 0;
                if (ada != null)
                {
                    ada.Fill(ds);
                    dt = ds.Tables[0];
                    return Count = dt.Rows.Count;
                }
                return 0;
            }
            finally
            {
                conn.Close();
            }

        }
        #endregion

调用代码：

 
 public int pageSize = 50;//一页显示50条数据
        public string keyword = string.Empty;//查找的关键字
        public int term = 1;//根据类别查找，默认【按名字】
        public string orderName ="ID";//根据这字段排序,默认【ID】
        public string orderType = "desc";//排序的方式，默认【降序】
        string tbName = "tb_viewproduct";//表名



AspNetPager1.PageSize = pageSize;

            ds = pg.GetPageDataBySql(AspNetPager1.CurrentPageIndex, AspNetPager1.PageSize, tbName, orderName, keyName, keyword, orderType);

            AspNetPager1.RecordCount = Pager.GetCount(tbName, keyName, keyword);

            lb1.Text = AspNetPager1.RecordCount.ToString();

            Repeater1.DataSource = ds;
            Repeater1.DataBind();